Phonograph.



R. THOMAS. PHONOGRAPH. APPLICATION FILED NOV.30.19\5.

EEINHQLD THGMAS,

G1 BRQKJKIJYN, NEW YORK.

PHONOGRAIPH.

messes.

Application filed Hovember 30, 1915.

To all whom it may concern:

Be it known that I, Rnmrrom THOMAS, a citizen of the United States, residing at Brooklyn, in the county of Kings and State of New York, have invented certain new and useful Improvements in Phonographs,

' of which the followmg is a specification.

which more than two tubes jugs, there is shown at his invention relates to improvements 111 iLOIlG-PlOjBOtlIig' or amplifying devices for phonographs, and comprises certain features whereby compactness, lightness and adaptability to various types of phonographs are combined with great accuracy of tone reproductio The invention includes also a novel means and method for blending and reinforcing tone waves. The objects of the invcntion will be in part obvious and in part specifically referred to in the course of the following description of the elements, combinations, arrangements of parts, and applications of principles constituting. the scope of protection appear from the claims.

In the accompanying drawings, which are to hetakcn as a. part of this specification, and in which I have shown merely a preferred form of'embodiment of the in vcntion, Figure 1 is a side elevation of a device embodying the invention, with parts broken away and parts in section; Fig.- 2 is a view talren right angles to Fig. l and with parts in central longitudinal sectiou; Fig.1 is a section taken on the line 3-3 of Fig. 2; Fig. i is a section taken on the line Mot Fig. 2; 5 is a section taken on the line of Fig. 2; Fig. 6 is an elevation of the end portion of one of the tubes shown in Figs. 1 and 2; Fig. 7 illustrates a modification of the device in are sleeved one elevation partly section illustratcontemplated will about the other; Fig. 8 is an broken away and partly in ing a modification of the device shown in Figs. 1 and 2; Fig. 9 is a central longitudinal section of still another modification.

Referring" to the numerals on the draw- 14 an ordinary reproducer or sound box, familiar in the art, and provided with the usual needle l5. 16 indicates a sound-conveying tube upon one end of which the sound box is mounted for pivotal movement iuthe usual way. In the form of device shown in Figs. 1 and 2 this sound-conveyinlnbc 16 is connected as lay means of a coupling-sleeve l? with $pecificatlon of Eettcrs Patent.

the invention; and

Patented June 12, Serial we. came.

a tubular member 18, and surrounding the tubular member 18, and concentric therewith, is a sleevel9. Both of these tubes, 18 and 19, are preferably of metal or a suitable resonating material, and they are held in their concentric spaced relation as by means of screws 20, which are threaded I through the outside tube or sleeve 19 and, .y make contact with or are threaded into the outside wall of the inner tube 18. 'lherel' 'l are preferably at least two sets of screwsfl three to each set, the screws of each set being equally spaced about the circu1nferences of the tubes, and it is obvious that the proper concentric relation between the tube 18 and sleeve 19 may be readily secured and maintained by manipulation of the screws. Of course other spacing means might be employed, but I prefer those just described because of their simplicity, offectiv-eness and chcapness.

lhe outside tube or sleeve 19 is preferably open at both ends, while the inside tube is open at one end for the reception of sound waves coming from the soundconveying tube 16, while at its other end it is provided with cut-out portions or openings 21, and to this end of the tube 18 there is secured a member 22, which combines 55 the functions of a resonator and of a sound reflector. This member 22 is preferably of the gong shape. shown, and of metal, and is arranged concentrically with the tube 18 and sleeve 19 with its concave side toward them, being however, as before stated, secured only to the projecting portions of the inner tube 18, as icy soldering or ctherwise, as indicated at 13. he reflector member 22 may have its innercentralportion formed like a cone indicated by the reference character 24, for the better distribution of the sound waves coming through the inner tube 18, and the central outside face of the reflector member may be provided with a threaded socket 25, for the attachment of a connecting rod 26, which may be connected by a horizontally disposed pivot 21 to one arm 28 of a right angled member, the other or vertical arm of which, 0 indicated by the reference character 29, is intendiid to seat and pivot within a. vertical standard 30, which will be attached at some convenient point on the phonograph.

The inner tube 18 is preferably provided with a. number of openings 31, through which the sound waves c g i t he tube tubes.

18 may pass out into the space between the tube 18 and sleeve 19, as indicated by the arrows. There are alsopreferably provided within the inner tube 18, though the same provision may of course be made for the outer sleeve 19, a plurality of spring tongues 32 of metal or the like, which are at one end as indicated at 33 secured to the inner tube, as by soldering or otherwise, and have their free ends extending transversely of 'the inner tube. These spring tongues may have various forms as shown in Figs. 3, 4 and 5, and it is their function to vibrate in harmony with the sound waves passing through the inner tube or the outer tube or both, as the case may be, thereby amplifying and improving the tone of the reproduced sounds. The sound waves pass from the inner tube 18 through the openings 21 and 31, into the space between the inner tube 18 and the sleeve 19, and then pass out at the open left hand end of the sleeve 19, and at the right hand end, between the edge of the sleeve and wall of the reflector 22, said edge or end of the sleeve being preferably spaced away from the reflector. It will of course be understood that I may omit the reflector member 22; that the outside sleeve'19,may extend to the right (referring to Fig.2) be: yond the end of the inner 'tu e 18, and that there may be still another sleeve, 23, surrounding the sleeve 19 concentrically therewith (Fig. 7), in which case the sleeve 19 would preferably be provided with openings like the openings 31. Furthermore, in case I use more than two concentric tubes, each outside tube may extend beyond the end of the tube which it surrounds, (that is, to the right in Fig. 7), so that I will have the efiect of a flaring horn; and then a reflector mem-.

ber 22 might be secured to the right hand end ofthe device, (for instance, to the end of the outside tube 23), so as to reflect the sound waves coming from Where such a plurality of tubes is employed I will preferably use the same modification. 1

means for keeping them in spacedrelation that is, the screws 20. y

In Fig. 8 I have shown the outer sleeve 19' provided at its left hand end with a hell or flared portion 34, which will serve somefunction as the reflector 22. In Fig. 9 there is shown still another this case the inner tube 18 increases in diameter toward the'right, whil the outer tube or sleeve 19 is closed at its right hand end, exceptfor apertures 35, and

increases in diameter toward its left hand end. Furthermore, the outside tube or sleeve is provided with an attaching portion 36, in

the formof a seat in whichthe end of a connecting rod 26 may be secured as by soldering or otherwise. The inner tube 18 shown in Fig. 11 may be provided with aperturesjl liliethese shown in Fig. 2 and also all of the nestedtube connected thereto,

with the spring tongue resonators 32, and the right hand end of the tube 18, where it abutsagainst and is soldered to the smaller and closed end of the outside member 19, is

7 provided with cut-out portions 21 similar to in the above construction, and many apparently widely different embodiments f my invention would be made without departing from the scope thereof, it is intended that all matter contained in the above description or shown in the accompanying drawings shall be interpreted as illustrative and not in a' limiting sense.

It is also to be understood that the language used in the following claims is intended to cover all thegeneric andspecific features of the invention herein described and all statements of the scope oflthe invention which, as a matter of language',lmight be said to fall therebetween. v

I claim:

1. In a device of the kind described, a sound-box or reproducer,

outside tube being .open.

2. In a device of the kind described, a sound box or reproducer, asound-conveying tube connected thereto having an opening in its wall, a'hollow member encompassing sai tube and. held in spaced relation thereto and open for discharge around the inner tube at the end toward the sound box, and a pivotally movable support for the entire structure.

3. In a device of the kind described, a sound box .or re reducer, tube connected t eretoand having an open ing in its wall, and a hollow member encom passing said tube and held'in spaced relationfthereto and open for sound discharge around thelinner tube at the end toward the sound box, and. having at the other end a resonator facing the corresponding-end of the inner tube.

4.- In a sound-box, or reproducer, tube connectedthereto, about the first and held in spaced relation thereto, both ends of both tubes being open, and a sound reflector carried by one of said tubes and adapted to reflect the sounds coming from both of the tubes.

5. In a device of the kind described, a sound-box or reproducer, a sound-conveying a second tube sleeved about the first and held in spaced relation thereto, both ends of both tubes being open, a sound reflector carried by one of said tubes a soundeconveymg a sound conveying v asecondtube sleeved device of, the kind described, a

' and held-in side member being open at both ends and bei ng flared at one end.

In a device of the kind described, 'a sound-box or reproducer, a sound-conveying tube connected thereto and having an opening in its wall, a second tube sleeved about the first and held in spaced relation thereto and open for discharge around the inner tube. at the end toward the sound box, and a gong-shaped reflector covering the ends of the tubes and supported by one of them.

i. In a device of the kind described, a sound-box or reproducer,-a sound-conveying tube connected thereto and having an opening in its wall, a second tube sleeved about the first and held in spaced relation thereto and open" for sound. discharge around the inner tube at the end toward the sound box, and a gong-shaped reflector overlying both of the tubes and connected to one of them, the ends of both tubes having portions spaced away from the reflector, and a pivotally movable support to which said combination of elements is connected.

9. In a device of the kind described, a sound-box or reproducer, a. sound-conveying tube connected thereto and having an opening in its wall, a second tube sleeved about inner tube at the end toward the sound box, and a gong-shaped reflector overlying both of the tubes and connected to one of them, the ends of both tubes having portions spaced away from the reflector, and a pivotally movable support to which said gongshaped reflector is connected.

10. In a' device of the kind described, a sound-box or reproducer, a sound-conveying tube connected thereto and having an opening in its Wall, a second tube sleeved about the first and held in spaced relation thereto and open for sound discharge around the innor tube at the end toward the sound box, and a gong-shaped reflector overlying both of the tubes and connected t0 one of them,

the ends of both tubes' avmg a spaced away from the 'reflector, and a pivf otally movable support to which said combii nation of elements is connected, said gongshaped reflector having its mouth directed toward said tubes and being arranged concentrically therewith.

the ends of spaced relation thereto, said out-v passing member in spaced relation,

portions 7 11. In a device of the kind described, a ound-box or reproducer, a sound-conveying tube connected thereto and having an openand a gong-shapcd reflector overlying both of the tubes and connected to one of them, both tubes having portions spaced away from the reflector, and a pivot-ally movable support to which centrically therewith, said reflector member having-a cone-shaped portion on its inner face centrally thereof.

2. In a device of the kind described, a sound-box or reprodncer, a sound-conveying said eombitube connected thereto and having an opening in its wall, a second tube sleeved about the first and held in spaced relation thereto, and a gong-shaped reflector overlying both of the tubes and connected to one of them, the ends of both tubes having portions spaced away from the reflector, said gongshaped reflector having its mouth directed toward said tubes and being arranged concentrically therewith, said reflector having on its convex face centrally thereof taching portion, and a pivotally movable support engaging said attaching portion.

13. In a device of the kind described, a sound box or reproducer, a sound-conveying tube connected thereto, a hollow member comprising screws threaded through theencompass ing member and engaging th lube.

14. In a device of the kin "described, a sound-box or reproducer, a sound-conveying tube connected thereto, and a second tube sleeved about the first and held in spaced relation thereto and open for sound discharge around the inner tube at the end toward the sound box, the said outside tube extending beyond the inside tube in the direction away from the reproducer.

15. In a sound-reproducing instrument in combination with a sound conduit consisting of two or more tubes. one within another spaced apart and communicating with each other, a sound box mounted at one end of the innermost of said tubes, the outer tube or tubes being formed for'sound discharge at the end toward the sound box, and axially open also at the other end, and a reflector facing and spaced away from the open ends of the tubes remote, from the sound box,

In testimony whereof I atiix my signature.

REIN HOLD THOMAS.

an at l 

